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Notice of proposed rulemaking (NPRM).

This action proposes to amend VHF Omnidirectional Range (VOR) Federal airways V-126, V-156, V-233, and V-422, and revoke VOR Federal airways V-340 and V-371. The FAA is proposing this action due to the planned decommissioning of the VOR portion of the Knox, IN (OXI), VOR/ Distance Measuring Equipment (VOR/DME) navigational aid (NAVAID). The Knox VOR is being decommissioned in support of the FAA's VOR Minimum Operational Network (MON) program.

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